Video: Yuav ua li cas yog ib tug zoo grained igneous pob zeb?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Coarse nplej ntau yam (nrog cov pob zeb hauv av loj txaus kom pom yam tsis muaj iav magnifying) yog hu ua phaneritic. Granite thiab gabbro yog cov piv txwv ntawm phaneritic igneous pob zeb . Fine grained pob zeb , qhov twg cov nplej me me dhau los pom, hu ua aphanitic. Basalt yog ib qho piv txwv.
Tsis tas li ntawd, dab tsi yog pob zeb zoo nkauj?
Kev txhais ntawm zoo - nplej . i. Hais txog ib tug crystalline pob zeb , thiab ntawm nws kev ntxhib los mos, nyob rau hauv uas tus neeg cov zaub mov kuj yog me me; tshwj xeeb. hais txog qhov tsis muaj zog pob zeb nws cov khoom muaj qhov nruab nrab txoj kab uas hla tsawg dua 1 mm. Synonym ntawm: aphanitic.
Tsis tas li ntawd, qhov txawv ntawm cov nplua nplej thiab ntxhib grained igneous pob zeb yog dab tsi? Nyias - grained igneous pob zeb ( igneous tocks nrog cov muaju loj) feem ntau yog tsim ntawm qee qhov tob hauv qab ntawm qhov chaw. Zoo - grain igneous pob zeb ntawm qhov tod tes yog tsim ntawm los yog ze heev ntawm qhov chaw. Zoo - grain igneous pob zeb muaj li ntawm me me crystals vim cov no pob zeb txias sai heev rau ntawm qhov chaw.
Ntxiv mus, dab tsi yog lub hauv paus chiv keeb ntawm nplua grained igneous pob zeb?
Teb thiab piav qhia: Lub keeb kwm ntawm zoo - grained igneous pob zeb yog magma, los yog molten pob zeb uas erupts los ntawm lub roob hluav taws nyob rau hauv daim ntawv ntawm lava.
Qhov loj npaum li cas qhia koj txog cov pob zeb tsis muaj zog?
Grain loj qhia peb ntau txog crystallisation ntawm ib igneous pob zeb . Nws kuj yog qhov pom tau zoo tshaj plaws thiab yog li muab peb qhov kev ntsuas thawj zaug rau kev faib tawm. Thaum lub cev loj magma tseem nyob hauv av, nws yog insulated los ntawm tshav kub poob thiab txias thiab solidifies qeeb heev.
Pom zoo:
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